To whom it may concern:
I have this 90 Grand Prix 3.1 V6 with 145,000. I was driving it "into town" (25 miles away, of course). It was sputtering slightly -- ever so slightly. I was heading for home and it acted like it shifted into neutral when I was driving 60 miles an hour as it revved up while I had the cruise control engaged. I physically shifted it into neutral and then back. It seemed okay and then it konked out when I put my foot down on the gas. All the dash lights came on. I attempted to start it. I could sometimes, but when I put my foot down on the gas again, it would die. I could even drive it for about a 1/2 mile or so and again it would konk out.
I have had it to several different mechanics. The first one tried a new fuel pump and that didn't help. He attempted some other things -- to no avail. He didn't charge us a dime. The only thing that we got out of the deal was the new fuel pump because he had no interest in digging it out one more time.
The second mechanic tried one thing -- charged us for it and still no help.
The third mechanic tried another computer module -- a used one -- and that didn't help.
No one has a clue. A friend of mine says that it sounded like the main computer module just from what he knew of it. He has worked on GM vehicles before for a living.
Is this it? I have also heard that it could be a faulty ground on the battery or to the computer module itself. It's frustrating. It worked beautifully until this happened.
Help us please, Chris Moe